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Hello,<br>
<br>
you have to do load balancing only for initial requests, not for
requests within dialog. For requests within dialog (like NOTIFY) is
better to rely on record routing.<br>
<br>
A good way to build your load balancing config for kamailio is to
start from disptacher module example:<br>
<br>
<a class="moz-txt-link-freetext" href="http://kamailio.org/docs/modules/stable/modules_k/dispatcher.html#id2523004">http://kamailio.org/docs/modules/stable/modules_k/dispatcher.html#id2523004</a><br>
<br>
Remove route[REGISTRAR], route[PRESENCE] and the $rU==$null
condition, then update route[DISPATCH] to fit your needs.<br>
<br>
Cheers,<br>
Daniel<br>
<br>
On 11/29/11 4:16 PM, Albert Petit wrote:
<blockquote
cite="mid:CAPFor4jXSHyi2wgQ0fMXMz7N_SyJxUwGZ95W7EGT4dHNdp8P5A@mail.gmail.com"
type="cite">Hello,<br>
<br>
I'm trying to setup kamailio as load balancer Behind that load
balancer I've a registrar and a presence server.<br>
<br>
When I start a client for the REGISTER and subscribe messages all
looks to work fine. The messages from clients are properly
balanced to the backend and responses are forwarded properly to
the clients.<br>
<br>
However when my presence server sends a NOTIFY I find the load
balancer module answers 404 message to the presence server.<br>
I'm thinking the problem is front-end kamailio cannot locate
users. I am quite newbie to use Kamailio for this purpose so
sorry if what i'm saying contains a big mistake. <br>
<br>
My load balancer script looks as following:<br>
<br>
log_facility=LOG_LOCAL0<br>
<br>
fork=yes<br>
children=4<br>
<br>
listen=<a moz-do-not-send="true" href="http://10.1.1.63:6666"
target="_blank">10.1.1.63:6666</a><br>
listen=<a moz-do-not-send="true" href="http://10.1.1.63:5060"
target="_blank">10.1.1.63:5060</a><br>
alias=<a moz-do-not-send="true" href="http://dev.genaker.net"
target="_blank">dev.myenvironment.net</a><br>
<br>
mpath="/usr/local/lib/kamailio/modules_k/:/usr/local/lib/kamailio/modules/"<br>
<br>
loadmodule "xlog.so"<br>
<br>
<br>
<br>
# ----------------- setting module-specific parameters
---------------<br>
<br>
#!define WITH_DISP<br>
<br>
#!ifdef WITH_DISP<br>
loadmodule "dispatcher.so"<br>
loadmodule "db_mysql.so"<br>
#!endif<br>
<br>
<br>
<br>
# ----- dispatcher -----<br>
#!ifdef WITH_DISP<br>
# Set database used for dispatcher servers. As we will use default
values, no further<br>
# information is needed<br>
modparam("dispatcher", "db_url","mysql://<a moz-do-not-send="true"
href="http://openser:openserrw@10.1.1.50/openser"
target="_blank">openser:openserrw@10.1.1.50/openser</a>")<br>
#!endif<br>
<br>
####### Routing Logic ########<br>
route{<br>
#!ifdef WITH_DISP<br>
if( uri=~<a class="moz-txt-link-rfc2396E" href="sip:.*session=chat.*">"sip:.*session=chat.*"</a> ) {<br>
xlog("L_DEBUG", "PoC:relaying chat session by Request
URI");<br>
ds_select_dst("1", "3");<br>
<br>
forward();<br>
} else {<br>
xlog("L_DEBUG", "PoC:relaying PoC Session by
round-robin");<br>
ds_select_dst("1", "4");<br>
forward();<br>
}<br>
#!else<br>
xlog("L_DEBUG", "PoC: Relaying by hardcoded route");<br>
t_relay("10.1.1.50", "6666");<br>
#!endif<br>
}<br>
~<br>
<br>
So the questions are: Does this module need to locate users?
Should I include usrloc module iin that sip proxy node in order to
be able to locate the users??<br>
<br>
Thanks<br>
Albert<br>
<br>
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<br>
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</pre>
</blockquote>
<br>
<pre class="moz-signature" cols="72">--
Daniel-Constantin Mierla -- <a class="moz-txt-link-freetext" href="http://www.asipto.com">http://www.asipto.com</a>
Kamailio Advanced Training, Dec 5-8, Berlin: <a class="moz-txt-link-freetext" href="http://asipto.com/u/kat">http://asipto.com/u/kat</a>
<a class="moz-txt-link-freetext" href="http://linkedin.com/in/miconda">http://linkedin.com/in/miconda</a> -- <a class="moz-txt-link-freetext" href="http://twitter.com/miconda">http://twitter.com/miconda</a></pre>
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